#include <iostream>
using std::cout;
using std::endl;

void func(int (&arr)[])
{
	for (int i = 0; i < 3; i++)
	{
		cout << arr[i];
	}
	cout << endl;
}

int main()
{
	int a[3] = { 0 };
	func(a);
	
	int (&arr)[] = a;
	
	
	return 0;
}
